1db569afaSSam Ravnborg# 2db569afaSSam Ravnborg# linux/arch/x86/boot/compressed/Makefile 3db569afaSSam Ravnborg# 4db569afaSSam Ravnborg# create a compressed vmlinux image from the original vmlinux 5db569afaSSam Ravnborg# 6db569afaSSam Ravnborg 7*ae03c499SAlain Knafftargets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o 8db569afaSSam Ravnborg 9db569afaSSam RavnborgKBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 10db569afaSSam RavnborgKBUILD_CFLAGS += -fno-strict-aliasing -fPIC 11db569afaSSam Ravnborgcflags-$(CONFIG_X86_64) := -mcmodel=small 12db569afaSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 13db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-ffreestanding) 14db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 15db569afaSSam Ravnborg 16db569afaSSam RavnborgKBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 17db569afaSSam Ravnborg 18db569afaSSam RavnborgLDFLAGS := -m elf_$(UTS_MACHINE) 19db569afaSSam RavnborgLDFLAGS_vmlinux := -T 20db569afaSSam Ravnborg 21778cb929SIan Campbell$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE 22db569afaSSam Ravnborg $(call if_changed,ld) 23db569afaSSam Ravnborg @: 24db569afaSSam Ravnborg 25099e1377SIan CampbellOBJCOPYFLAGS_vmlinux.bin := -R .comment -S 26db569afaSSam Ravnborg$(obj)/vmlinux.bin: vmlinux FORCE 27db569afaSSam Ravnborg $(call if_changed,objcopy) 28db569afaSSam Ravnborg 29db569afaSSam Ravnborg 307f16a339SH. Peter Anvintargets += vmlinux.bin.all vmlinux.relocs relocs 317f16a339SH. Peter Anvinhostprogs-$(CONFIG_X86_32) += relocs 32db569afaSSam Ravnborg 33db569afaSSam Ravnborgquiet_cmd_relocs = RELOCS $@ 34db569afaSSam Ravnborg cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $< 35db569afaSSam Ravnborg$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE 36db569afaSSam Ravnborg $(call if_changed,relocs) 37db569afaSSam Ravnborg 38db569afaSSam Ravnborgvmlinux.bin.all-y := $(obj)/vmlinux.bin 39db569afaSSam Ravnborgvmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs 40db569afaSSam Ravnborgquiet_cmd_relocbin = BUILD $@ 41db569afaSSam Ravnborg cmd_relocbin = cat $(filter-out FORCE,$^) > $@ 42db569afaSSam Ravnborg$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE 43db569afaSSam Ravnborg $(call if_changed,relocbin) 44db569afaSSam Ravnborg 457f16a339SH. Peter Anvinifeq ($(CONFIG_X86_32),y) 467f16a339SH. Peter Anvin 47db569afaSSam Ravnborgifdef CONFIG_RELOCATABLE 48db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE 49db569afaSSam Ravnborg $(call if_changed,gzip) 50*ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin.all FORCE 51*ae03c499SAlain Knaff $(call if_changed,bzip2) 52*ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin.all FORCE 53*ae03c499SAlain Knaff $(call if_changed,lzma) 540530bf37SThomas Gleixnerelse 55db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE 56db569afaSSam Ravnborg $(call if_changed,gzip) 57*ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE 58*ae03c499SAlain Knaff $(call if_changed,bzip2) 59*ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE 60*ae03c499SAlain Knaff $(call if_changed,lzma) 610530bf37SThomas Gleixnerendif 62db569afaSSam RavnborgLDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T 63db569afaSSam Ravnborg 64db569afaSSam Ravnborgelse 65*ae03c499SAlain Knaff 66db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE 67db569afaSSam Ravnborg $(call if_changed,gzip) 68*ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE 69*ae03c499SAlain Knaff $(call if_changed,bzip2) 70*ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE 71*ae03c499SAlain Knaff $(call if_changed,lzma) 72db569afaSSam Ravnborg 73db569afaSSam RavnborgLDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T 74db569afaSSam Ravnborgendif 75db569afaSSam Ravnborg 76*ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_GZIP) = gz 77*ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_BZIP2) = bz2 78*ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_LZMA) = lzma 79*ae03c499SAlain Knaff 80*ae03c499SAlain Knaff$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix_y) FORCE 81db569afaSSam Ravnborg $(call if_changed,ld) 82